Replacement Filter Cartridges

Trying to find the right replacement filter cartridge for your swimming pool or spa can be difficult and frustrating. With over 650 filter cartridges for your pool or spa to choose from, we are sure to have exactly what you are looking for. Our goal is to make your search for the right replacement filter cartridge as easy as possible.

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Top Cap
Bottom Cap
Outer Diameter 7"
Length 10 3/4"
Original Manufacturer Caldera Spas
Description: Filter Cartridge for Caldera 50, 50 sq ft.
Pleatco:
Unicel# C-7451
Filbur# FC-3084
Price: $29.99
MORE IMAGES
Top Cap
Bottom Cap
Outer Diameter 7"
Length 14 7/8"
Original Manufacturer Caldera Spas
Description: Filter Cartridge for Caldera 75, 75 sq ft.
Pleatco:
Unicel# C-7479
Filbur# FC-3085
Price: $35.99
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Top Cap
Bottom Cap 3 5/8"
Outer Diameter 8"
Length 16 1/2"
Original Manufacturer Caldera Spas
Description: Filter Cartridge for Caldera 100, 100 sq ft.
Pleatco:
Unicel# C-8399
Filbur# FC-3965
Price: $54.99
Pleatco:
Antimicrobial
Unicel# C-8399
Filbur# FC-3965
Price: $61.99
MORE IMAGES
Top Cap
Bottom Cap 2 11/16"
Outer Diameter 7"
Length 10 3/4"
Original Manufacturer Caldera Spas
Description: Filter Cartridge for Caldera 50 (new style), 50 sq ft.
Pleatco:
Unicel# C-7350
Filbur# FC-3963
Price: $37.99
MORE IMAGES
Top Cap
Bottom Cap 2 11/16"
Outer Diameter 7"
Length 14 7/8"
Original Manufacturer Caldera Spas
Description: Filter Cartridge for Caldera 75 (new style), 75 sq ft.
Pleatco:
Unicel# C-7375
Filbur# FC-3964
Price: $49.99
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